DataGrid.ItemsSource.Refresh() not working

I have a wpf form which contains a datagrid. I did put a button on my form to "Refresh" the datagrid. Steps I'm trying to get it to refresh:

1. I update the viewsource from my db: SupportCaseViewSource.Source = SupportCaseManager.GetAllSupportCases()开发者_StackOverflow中文版;

2. I refresh the datagrid items: SupportCaseDataGrid.Items.Refresh();

But nothing happens...no new data displayed!!

Has someone an idea how to do this?

Thanks

Beat

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Rather than manually instructing your controls to refresh, you can implement INotifyPropertyChanged and call PropertyChanged with appropriate arguments. In your case this is probably

PropertyChanged(this, new PropertyChangedEventArgs("Source"));

It'll be whatever is bound to the SupportCaseDataGrid.ItemsSource.